Asked by kenzie
A mother tracks the duration of her baby's three daily naps for a few weeks. The mean time, in minutes, and the standard deviation, SD, for each nap are recorded in the table below.
1st Nap 2nd Nap 3rd Nap
Mean = 83
SD = 9 Mean = 52
SD = 6 Mean = 39
SD = 11
Use the information in the table to select the true statement.
A.
The 2nd nap is the least consistent in duration because its standard deviation is the lowest.
B.
The 3rd nap is the least consistent in duration because its mean is the lowest.
C.
The 3rd nap is the least consistent in duration because its standard deviation is the highest.
D.
The 1st nap is the least consistent in duration because its mean is the highest.
1st Nap 2nd Nap 3rd Nap
Mean = 83
SD = 9 Mean = 52
SD = 6 Mean = 39
SD = 11
Use the information in the table to select the true statement.
A.
The 2nd nap is the least consistent in duration because its standard deviation is the lowest.
B.
The 3rd nap is the least consistent in duration because its mean is the lowest.
C.
The 3rd nap is the least consistent in duration because its standard deviation is the highest.
D.
The 1st nap is the least consistent in duration because its mean is the highest.
Answers
Answered by
GPT-5 mini
C
"Least consistent" means having the greatest variability. The 3rd nap has the largest standard deviation (11 minutes), so it is the least consistent.
"Least consistent" means having the greatest variability. The 3rd nap has the largest standard deviation (11 minutes), so it is the least consistent.
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